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cond-mat.stat-mech2021
Field theoretical approach to spin models
Feng Liu, Zhenhao Fan, Zhipeng Sun +2
We developed a systematic non-perturbative method base on Dyson-Schwinger theory and the -derivable theory for Ising model at broken phase. Based on these methods, we obtain cri…
cond-mat.str-el2021★ 6 cited
Modified Method in Electronic Systems
Zhipeng Sun, Zhenhao Fan, Hui Li +2
A modified approximation to many - body systems is developed. The approximation has the same computational complexity as the traditional approach, but uses a different tr…